<template>
  <div>
    <!-- 面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="搜索商品..." v-model="queryInfo.query" clearable @clear="getGoodsList">
              <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <el-table :data="goodsList" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格" prop="goods_price" width="100"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="100"></el-table-column>
        <el-table-column label="创建时间" width="180">
          <template v-slot="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200">
          <template v-slot="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页栏-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[30, 50, 100, 200, 300]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background></el-pagination>

    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 50
      },
      goodsList: [],
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    /* 获取商品列表 */
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败！')
      this.total = res.data.total
      this.goodsList = res.data.goods
    },
    /* 分页大小改变触发 */
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    /* 分页 页数改变触发 */
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    /* 根据id删除对应的商品 */
    async removeById (id) {
      const confirmResult = await this.$confirm('此操作将永久该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        this.$message.info('已取消删除')
      } else {
        const { data: res } = await this.$http.delete('goods/' + id)
        if (res.meta.status !== 200) return this.$message.error('删除商品失败！')
        this.$message.success('删除商品成功了')
        this.getGoodsList()
      }
    },
    /* 跳转到添加商品的路由 */
    goAddpage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
